Chapter 11 Rolling, Torque, and Angular Momentum In this chapter we will cover the following topics: -Rolling of circular objects and its relationship with friction -Redefinition of torque as a vector to describe rotational problems that are more complicated than the rotation of a rigid body about a fixed axis -Angular Momentum of single particles and systems or particles -Newton’s second law for rotational motion -Conservation of angular Momentum -Applications of the conservation of angular momentum (11-1)
t1 = 0 t2 = t (11-2)
(11-3)
A B vA vB vT vO (11-4)
(11-5)
(11-6)
acom (11-7)
acom (11-8)
y acom (11-9)
B (11-10)
B (11-11)
(11-12)
(11-13) O m1 m3 m2 ℓ1 ℓ2 ℓ3 x y z
(11-14)
(11-15)
(11-16)
y-axis (11-17)
(11-18)